Isaiah 49:4; Isaiah 65:23

qBut I said, I have labored in vain;

I have spent my strength for nothing and vanity;

yet surely my right is with the Lord,

and my recompense with my God.

23  sThey shall not labor in vain

tor bear children for calamity,1

for uthey shall be the offspring of the blessed of the Lord,

and their descendants with them.